Author: Andrew Nicols
MDL-68463 user: Update select/show [count] links dynamically
http://git.moodle.org/gw?p=moodle.git;a=commit;h=ed23725bc64b1fa8f661af8cd5f2d9dc3c1b8c0a
http://github.com/moodle/moodle/commit/ed23725bc64b1fa8f661af8cd5f2d9dc3c1b8c0a
+ 3.9 en [countparticipantsfound,core_user]